package com.powernode.config;

import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.data.redis.cache.RedisCacheConfiguration;
import org.springframework.data.redis.serializer.RedisSerializationContext;
import org.springframework.data.redis.serializer.RedisSerializer;

import java.time.Duration;

/**
 * redis缓存配置类
 */
@Configuration
public class RedisCacheConfig {

    @Bean
    public RedisCacheConfiguration redisCacheConfiguration(){
        // 创建redis缓存配置类
        RedisCacheConfiguration redisCacheConfiguration = RedisCacheConfiguration.defaultCacheConfig();
        // 进行redis配置
        redisCacheConfiguration.serializeValuesWith(RedisSerializationContext.SerializationPair.fromSerializer(RedisSerializer.json()))// 设置redis值的序列化方式为json
                .entryTtl(Duration.ofDays(7)) // 统一设置redis缓存过期时间为7天;
                .disableCachingNullValues();  // redis的value值不能为null;
        return RedisCacheConfiguration.defaultCacheConfig();
    }
}
